Well-drill.



M. B. WALKER.

WELL- DRILL.

APPLICATION man mmze. 1916.

1,189,513.- Patented July 1,; 1916.'

MBWHLKER the following is a specification, reference bei Y the upper end thereof .rangement of the several parts UNITED srwnn'r "ornron MERIT BENJAMIN WATLKER, OF BDUM, TEXAS-V I WELD-DRILL I Specification of Letters ratent.

Application filed January as, me. -Seria1 No. 74,390.

To-aZZauimm it may concern: posed longitudinally of the section 1 at its Be it known that I, MERIT B- WALKER, a citizen )f the United States, residing at Blum, in the county of Hill and State of Texas, have invented certainnew and useful Improvements in Well-Drills, of which to be disposed The inner end of the slot 3' is provided with an inwardly disposed restricted (Titension or recess 6 provided atits inner Mal and at the axial center of the section 1 with the eye 7 through which the cable 5 is adapt ed to be threaded, and having its returned portion 8 secured to the portion of the cable 5 proper within the slot 3 by the clamps 9, preferably three in number as illustrated in the accompanying drawings, although I do not wish to be understood as limiting myself in this exact detail.

In themanner of the section 1 or'upper end portion of a drill. it will be seen that the upper or outer end of the drill or section -1- may be struck in order to knock the drill loose when hung in a well without any danger of striking the clamps 9 or otherwise affecting the connecing had to the accompanying drawings.

This invention relates to certain improvementsin well drills and it is an object of the invention to provide a'device of this general character' with novel and improve means whereb theoperating cable may be connected with. the upper end thereof in such a manner as'to permit the upper en of the drill to be struck without liability of disengaging the cable from'the drill.

The invention consists in the' details of construction and in the combination and arof. my improved drill whereby certain important advantages are attained and the deviceis ren- V dered simpler, less expensive and otherwise tion between the cable 5 and the drill or seemore convenient and advantageous for use, t10n 1. It Wlll be'readily perceived that in all as will be hereinafter more fully set the event the cable 5 breaks at-a point adforth. acent the eye 7,'the upper clamp 9v will The novel features of the invention will prevent the cable from being withdrawn. hereinafter be definitely claimed. through the openin' 4:, and it will also be In. order that my invention may be the perceived that .inthe event the. cable 5 should be severed'at a'point above the drill, a grapple an elongated slot 3 in order to permit the drill being easily removed from withina well.

From the foregoing description itis thought to be obvious that a well drill constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularlvwell better understood, 1 will now proceed scribe the same with reference to the accompanying drawings, wherein- Figure 1 is a view partly-in elevationand partly in section illustrating an upper end or section of a drill constructed in accordance with an embodiment of my invention; Fig. 2 is a fragmentary longitudinal sectional view illustrating certain details of my invention as herein embodied, with the cable omitted; and Fig. 3 is a transverse sectional and facil ty with which itmay be assembled, view taken through the device as herein emand it will also beobvious that my invenbodied. with the cable omitted. tion issusceptible of some change and modi- As disclosed in the accompanying drawfication w vithout material, departure from ings, 1 denotes the upper section or a well the principles and spirit thereof and for this drill having its innerend provided with the reason I do not wish to be understood as threaded extension 2, whereby the same may be detachably engaged in a conventional manner with an adjacent well section, and said section 1 adjacent its outer end is pro- I vided with the elongated longitudinally disposed slot 33 having in communication with the opening 4 disshown in carrying out my invention in practice.

I claim: '1. A drill having itsouter end portion provided with an enlongated slot and havax'ial center and through which is ada ted.

an extremity of the cab e 5. I

be readily engaged within the.

'Patented-Ji1'1y4,1916.

attaching the cable 5 to adapted for usebv reason of the convenience limiting myself to the precise arrangement and formation of the several parts herein ing an 0 ening in its outer end in communisricteci exfiension, anii an eye armnged at cation wlth the outer end of the slot, and an (be inner end of said extension. 1O eye arranged at the inner end of the slot. In testimony whereof I hereunto aflix my 2. A drill having its outer end portion signature in the presenceof two witnesses. provided with an elongated slot and having MERIT BENJAMIN WALKER. an opening in its outer. end in communic'a- Witnesses: tion with theouter end of the slot, the inner W. L. ROGERS,

end of the slot being provided with a re- B. V. ADAMS. 

